Use translation on package view page

app/models/packages.py

@@ -19,8 +19,9 @@ import datetime
 import enum
 import os
 
+import typing
 from flask import url_for
-from flask_babel import lazy_gettext
+from flask_babel import lazy_gettext, get_locale
 from flask_sqlalchemy import BaseQuery
 from sqlalchemy import or_, func
 from sqlalchemy.dialects.postgresql import insert
@@ -493,6 +494,28 @@ class Package(db.Model):
 	def get_id(self):
 		return "{}/{}".format(self.author.username, self.name)
 
+	def get_translated(self, lang=None):
+		if lang is None:
+			locale = get_locale()
+			if locale:
+				lang = locale.language
+			else:
+				lang = "en"
+
+		translation: typing.Optional[PackageTranslation] = self.translations.filter_by(language_id=lang).first()
+		if translation is None:
+			return {
+				"title": self.title,
+				"short_desc": self.short_desc,
+				"desc": self.desc,
+			}
+
+		return {
+			"title": translation.title or self.title,
+			"short_desc": translation.short_desc or self.short_desc,
+			"desc": translation.desc or self.desc,
+		}
+
 	def get_sorted_dependencies(self, is_hard=None):
 		query = self.dependencies
 		if is_hard is not None:

app/templates/packages/view.html

@@ -1,14 +1,15 @@
-{% set query=package.name %}
-{% set release = package.get_download_release() %}
-
 {% extends "base.html" %}
 
+{% set query=package.name %}
+{% set release = package.get_download_release() %}
+{% set meta = package.get_translated() %}
+
 {% block title %}
-	{{ package.title }}
+	{{ meta.title }}
 {% endblock %}
 
 {% block description -%}
-{{ package.short_desc }}
+	{{ meta.short_desc }}
 {% endblock %}
 
 {% block headextra %}
@@ -130,11 +131,11 @@
 			</div>
 
 			<h1 class="display-3">
-				{{ package.title }}
+				{{ meta.title }}
 			</h1>
 
 			<p class="lead">
-				{{ package.short_desc }}
+				{{ meta.short_desc }}
 			</p>
 
 			<p>
@@ -322,9 +323,9 @@
 					</ul>
 				{% endif %}
 
-				{% if package.desc %}
+				{% if meta.desc %}
 					<article class="markdown panel mb-5">
-						{{ package.desc | markdown }}
+						{{ meta.desc | markdown }}
 					</article>
 				{% endif %}
 
@@ -454,7 +455,7 @@
 									<a class="badge bg-primary"
 											href="{{ dep.package.get_url('packages.view') }}">
 										{{ _("%(title)s by %(display_name)s",
-												title=dep.package.title, display_name=dep.package.author.display_name) }}
+												title=dep.package.get_translated().title, display_name=dep.package.author.display_name) }}
 									</a>
 								{% elif dep.meta_package %}
 									<a class="badge bg-primary"
@@ -478,7 +479,7 @@
 										<a class="badge bg-secondary"
 												href="{{ dep.package.get_url('packages.view') }}">
 											{{ _("%(title)s by %(display_name)s",
-													title=dep.package.title, display_name=dep.package.author.display_name) }}
+													title=dep.package.get_translated().title, display_name=dep.package.author.display_name) }}
 									{% elif dep.meta_package %}
 										<a class="badge bg-secondary"
 												href="{{ url_for('modnames.view', name=dep.meta_package.name) }}">